204538370

素因数分解:

$2^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{51521}}^1$

素因数の和:51925

約数の個数: 16

約数和(自身を含む): 369103608

約数和(自身を除く): 164565238

約数列:

[1, 2, 5, 10, 397, 794, 1985, 3970, 51521, 103042, 257605, 515210, 20453837, 40907674, 102269185, 204538370]

約数ペア:

[(1, 204538370), (2, 102269185), (5, 40907674), (10, 20453837), (397, 515210), (794, 257605), (1985, 103042), (3970, 51521)]